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Annotation of docbook2mdoc/node.h, Revision 1.2

1.2     ! schwarze    1: /* $Id: node.h,v 1.1 2019/03/26 18:32:07 schwarze Exp $ */
1.1       schwarze    2: /*
                      3:  * Copyright (c) 2014 Kristaps Dzonsons <kristaps@bsd.lv>
                      4:  * Copyright (c) 2019 Ingo Schwarze <schwarze@openbsd.org>
                      5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
                     18: #include <sys/queue.h>
                     19:
                     20: /*
                     21:  * The interface of the DocBook syntax tree.
                     22:  */
                     23:
                     24: /*
                     25:  * All node types used for formatting purposes.
                     26:  * More DocBook XML elements are recognized, but remapped or discarded.
                     27:  */
                     28: enum   nodeid {
1.2     ! schwarze   29:        NODE_IGNORE = 0,  /* Must come first. */
        !            30:        NODE_WARN,
1.1       schwarze   31:        /* Alpha-ordered hereafter. */
                     32:        NODE_ACRONYM,
                     33:        NODE_AFFILIATION,
                     34:        NODE_ANCHOR,
                     35:        NODE_APPLICATION,
                     36:        NODE_ARG,
                     37:        NODE_AUTHOR,
                     38:        NODE_AUTHORGROUP,
                     39:        NODE_BLOCKQUOTE,
                     40:        NODE_BOOK,
                     41:        NODE_BOOKINFO,
                     42:        NODE_CAUTION,
                     43:        NODE_CITEREFENTRY,
                     44:        NODE_CITETITLE,
                     45:        NODE_CMDSYNOPSIS,
                     46:        NODE_CODE,
                     47:        NODE_COLSPEC,
                     48:        NODE_COMMAND,
                     49:        NODE_CONSTANT,
                     50:        NODE_COPYRIGHT,
                     51:        NODE_DATE,
                     52:        NODE_EDITOR,
                     53:        NODE_EMAIL,
                     54:        NODE_EMPHASIS,
                     55:        NODE_ENTRY,
                     56:        NODE_ENVAR,
                     57:        NODE_FIELDSYNOPSIS,
                     58:        NODE_FILENAME,
                     59:        NODE_FIRSTNAME,
                     60:        NODE_FIRSTTERM,
                     61:        NODE_FOOTNOTE,
                     62:        NODE_FUNCDEF,
                     63:        NODE_FUNCPROTOTYPE,
                     64:        NODE_FUNCSYNOPSIS,
                     65:        NODE_FUNCSYNOPSISINFO,
                     66:        NODE_FUNCTION,
                     67:        NODE_GLOSSTERM,
                     68:        NODE_GROUP,
                     69:        NODE_HOLDER,
                     70:        NODE_INDEX,
                     71:        NODE_INDEXTERM,
                     72:        NODE_INFO,
                     73:        NODE_INFORMALEQUATION,
                     74:        NODE_INFORMALTABLE,
                     75:        NODE_INLINEEQUATION,
                     76:        NODE_ITEMIZEDLIST,
                     77:        NODE_KEYSYM,
                     78:        NODE_LEGALNOTICE,
                     79:        NODE_LINK,
                     80:        NODE_LISTITEM,
                     81:        NODE_LITERAL,
                     82:        NODE_LITERALLAYOUT,
                     83:        NODE_MANVOLNUM,
                     84:        NODE_MEMBER,
                     85:        NODE_MML_MATH,
                     86:        NODE_MML_MFENCED,
                     87:        NODE_MML_MFRAC,
                     88:        NODE_MML_MI,
                     89:        NODE_MML_MN,
                     90:        NODE_MML_MO,
                     91:        NODE_MML_MROW,
                     92:        NODE_MML_MSUB,
                     93:        NODE_MML_MSUP,
                     94:        NODE_MODIFIER,
                     95:        NODE_NOTE,
                     96:        NODE_OPTION,
                     97:        NODE_ORDEREDLIST,
                     98:        NODE_ORGNAME,
                     99:        NODE_OTHERNAME,
                    100:        NODE_PARA,
                    101:        NODE_PARAMDEF,
                    102:        NODE_PARAMETER,
                    103:        NODE_PERSONNAME,
                    104:        NODE_PHRASE,
                    105:        NODE_PREFACE,
                    106:        NODE_PRIMARY,
                    107:        NODE_PROGRAMLISTING,
                    108:        NODE_PROMPT,
                    109:        NODE_QUOTE,
                    110:        NODE_REFCLASS,
                    111:        NODE_REFDESCRIPTOR,
                    112:        NODE_REFENTRY,
                    113:        NODE_REFENTRYINFO,
                    114:        NODE_REFENTRYTITLE,
                    115:        NODE_REFMETA,
                    116:        NODE_REFMETAINFO,
                    117:        NODE_REFMISCINFO,
                    118:        NODE_REFNAME,
                    119:        NODE_REFNAMEDIV,
                    120:        NODE_REFPURPOSE,
                    121:        NODE_REFSYNOPSISDIV,
                    122:        NODE_RELEASEINFO,
                    123:        NODE_REPLACEABLE,
                    124:        NODE_ROW,
                    125:        NODE_SBR,
                    126:        NODE_SCREEN,
                    127:        NODE_SECONDARY,
                    128:        NODE_SECTION,
                    129:        NODE_SGMLTAG,
                    130:        NODE_SIMPLELIST,
                    131:        NODE_SPANSPEC,
                    132:        NODE_STRUCTNAME,
                    133:        NODE_SUBTITLE,
                    134:        NODE_SURNAME,
                    135:        NODE_SYNOPSIS,
                    136:        NODE_TABLE,
                    137:        NODE_TBODY,
                    138:        NODE_TERM,
                    139:        NODE_TEXT,
                    140:        NODE_TFOOT,
                    141:        NODE_TGROUP,
                    142:        NODE_THEAD,
                    143:        NODE_TIP,
                    144:        NODE_TITLE,
                    145:        NODE_TRADEMARK,
                    146:        NODE_TYPE,
                    147:        NODE_ULINK,
                    148:        NODE_USERINPUT,
                    149:        NODE_VARIABLELIST,
                    150:        NODE_VARLISTENTRY,
                    151:        NODE_VARNAME,
                    152:        NODE_WARNING,
                    153:        NODE_WORDASWORD,
                    154:        NODE_YEAR,
                    155:        NODE__MAX
                    156: };
                    157:
                    158: /*
                    159:  * All recognised attribute keys.
                    160:  * Other attributes are discarded.
                    161:  */
                    162: enum   attrkey {
                    163:        /* Alpha-order... */
                    164:        ATTRKEY_CHOICE = 0,
                    165:        ATTRKEY_CLASS,
                    166:        ATTRKEY_CLOSE,
                    167:        ATTRKEY_ID,
                    168:        ATTRKEY_LINKEND,
                    169:        ATTRKEY_OPEN,
                    170:        ATTRKEY_REP,
                    171:        ATTRKEY__MAX
                    172: };
                    173:
                    174: /*
                    175:  * All explicitly recognised attribute values.
                    176:  * If an attribute has ATTRVAL__MAX, it is treated as free-form.
                    177:  */
                    178: enum   attrval {
                    179:        /* Alpha-order... */
                    180:        ATTRVAL_MONOSPACED,
                    181:        ATTRVAL_NOREPEAT,
                    182:        ATTRVAL_OPT,
                    183:        ATTRVAL_PLAIN,
                    184:        ATTRVAL_REPEAT,
                    185:        ATTRVAL_REQ,
                    186:        ATTRVAL__MAX
                    187: };
                    188:
                    189: TAILQ_HEAD(pnodeq, pnode);
                    190: TAILQ_HEAD(pattrq, pattr);
                    191:
                    192: /*
                    193:  * One DocBook XML element attribute.
                    194:  */
                    195: struct pattr {
                    196:        enum attrkey     key;
                    197:        enum attrval     val;
                    198:        char            *rawval;
                    199:        TAILQ_ENTRY(pattr) child;
                    200: };
                    201:
                    202: /*
                    203:  * One DocBook XML element.
                    204:  */
                    205: struct pnode {
                    206:        enum nodeid      node;     /* Node type. */
                    207:        char            *b;        /* String value. */
                    208:        char            *real;     /* Storage for "b". */
                    209:        size_t           bsz;      /* strlen(b) */
                    210:        struct pnode    *parent;   /* Parent node or NULL. */
                    211:        struct pnodeq    childq;   /* Queue of children. */
                    212:        struct pattrq    attrq;    /* Attributes of the node. */
                    213:        TAILQ_ENTRY(pnode) child;
                    214: };
                    215:
                    216: /*
                    217:  * The parse result for one complete DocBook XML document.
                    218:  */
                    219: struct ptree {
                    220:        struct pnode    *root;     /* The document element. */
                    221:        int              flags;
                    222: #define        TREE_FAIL        (1 << 0)  /* A fatal parse error occurred. */
                    223: #define        TREE_EQN         (1 << 1)  /* The document needs inline eqn(7). */
                    224: };
                    225:
                    226:
                    227: enum attrkey    attrkey_parse(const char *);
                    228: enum attrval    attrval_parse(const char *);
                    229: void            pnode_unlink(struct pnode *);
                    230: void            pnode_unlinksub(struct pnode *);
                    231: enum attrval    pnode_getattr(struct pnode *, enum attrkey);
                    232: const char     *pnode_getattr_raw(struct pnode *, enum attrkey, const char *);
                    233: struct pnode   *pnode_findfirst(struct pnode *, enum nodeid);

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